He just wanted to have a look at what I was doing but didn’t really want to do it himself.

Oh well.

What I wanted was to have a rainbow-colored result; thus the red, yellow, blue and violet colors.

You don’t have to do this. This is just for aesthetics purposes. You can use any color you want by all means!

As I said, it can take a while for the colors to “travel”.

Here it is after 30 minutes….

After 6 hours….

The following morning…

Capillary Action Experiment Instructions

First, arrange the glasses next to each other.

Then pour water into the first, 3rd, 5th and 7th glasses.

Next, put the red coloring in the first glass, yellow in the 3rd glass, blue in the 5th glass and violet in the 7th glass.

After this, fold the paper towels.

Put the end of 1 paper towel on the first glass and the other end on the 2nd glass. Put another end of another paper towel on the 2nd glass and another on the 3rd glass. Keep doing this until the last glass.

Now all you have to do is wait.

After 30 minutes, some of the water should already be absorbed by the paper towels. It won’t be that bright yet, but it is enough to see something IS happening.

variations:

If you don’t want to use paper towels, you can use white flowers instead.

To make the flow of the waterfaster, you can make a pyramid of the glasses. So you prop the first glass on the top of a pile of books, the 2nd a little bit lower, the 3rd lower than the 2nd and so on.

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